Communication method applied to underwater acoustic communication network

Abstract

The invention discloses a communication method applied to an underwater acoustic communication network, and relates to the technical field of underwater acoustic communication. The method comprises the following steps: initializing a network, and establishing network topology structure information; reserving two stages of adjacent node tables, eliminating empty nodes by sending inquiry broadcast to adjacent nodes, and simplifying a network node structure; sending data, judging whether the data contains path information, and if not, establishing a transmission path; completing data transmissionthrough an RTS-CTS handshake process; when the target node is not in the range of the adjacent node table, adding the next two stages of adjacent node tables by inquiring the edge nodes; enabling thecommunication node to reserve an activation time window after each communication is completed, and enabling the node to send data without awakening signals in the activation time; enabling the targetnode to receive the data, monitor the channel state after receiving the RTS information, send CTS information under the condition of judging that the channel is not occupied, then receive the data, and send ACK information after success; and periodically updating neighboring node tables.

Description

technical field [0001] The invention relates to the technical field of underwater acoustic communication, in particular to a communication method applied to an underwater acoustic communication network. Background technique [0002] The underwater acoustic communication network is a distributed, multi-node, and multi-node communication network composed of sensor nodes (including fixed sensor nodes and mobile platforms loaded with sensors) and buoy nodes on the seabed and in the sea, as well as single / two-way acoustic links between them. A comprehensive system that covers a large underwater three-dimensional area, can collect, process, classify and compress information, and can relay back to land-based or ship-based information control centers through underwater nodes. [0003] The characteristics of underwater acoustic communication channels are complex, and there are problems such as multipath, attenuation, low sound velocity, and small bandwidth. [0004] Multipath proble...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a communication method applied to an underwater acoustic communication network, which solves the problem that the existing wireless network protocol cannot guarantee the quality of underwater communication, and at the same time minimizes the cost of the acoustic communication network system while ensuring the throughput. power consumption

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